You are here

Home » Content

Partial Discharge Localization in Stator Winding of Generators using R, L, C Ladder Network

Journal Name:

  • International Journal of Science and Engineering Investigations

Publication Year:

  • 2013

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
Partial discharge (PD) is a major source of insulation failure in power electrical machines. The location of a PD source is of crucial importance in both the maintenance and repair of an electrical machine. This paper applies the knowledge that the poles of a PD current frequency spectrum do not change, whilst the zeros vary with the position of a PD source within the winding. An algorithm based on this approach has been developed for the localization of PDs. The algorithm adopts the well-known ladder network to model the electrical machine winding, and then estimates the parameters of this model from the poles of the PD current frequency spectrum. This provides the necessary information to be able to calculate a PD signal from different source locations within the model. Finally, the position of a PD source can then be estimated by a comparison of the measured and calculated PD signals. Simulation and experimentation results are demonstrated in the paper.
Bookmark/Search this post with
FULL TEXT (PDF): 
PDF icon ijsei-21813-10.pdf
  • 18
77-82
  • English

REFERENCES

References: 

[1] J.P. Steiner, W. L. Weeks, A new method for locating partial discharges in transformer, p275- 281.
[2] P. Werle, A. Akbari, H. Borsi, E. Gockenbach, An enhanced system for partial discharge diagnosis on power transformer, in:
International Journal of Science and Engineering Investigations, Volume 2, Issue 18, July 2013 82
www.IJSEI.com Paper ISSN: 2251-8843 ID: 21813-10
Proceedings of the 13th International Symposium on High Voltage Engineering, Rotterdam, Netherlands, 2003.
[3] R. E. James, J. Austin and P. Marshall, Application of Capacitive network winding representation to the location of partial discharge in transformers, Electrical Engineering Trans. I. E. Australia, pp.95-103, 1977.
[4] R. E. James, B. T. Phung, Q. Su, ‘Application of Digital Filtering Techniques to the Determination of Partial Discharge Location in Transformers’, IEEE Trans. Electrical Insulation, Vol. 24, No.4, August, 1989.
[5] Yafei Zhou, A. I. Gardiner, G. A. Mathieson, Y. Qin, ‘New Methods of Partial Discharge Measurement for the Assessment and Monitoring of Insulation in Large Machines’, p111-114.
[6] Z.D. Wang, P.A. Crossley, K. J. Cornick, ‘A Simulation Model for Propagation of Partial Discharge Pulse in Transformer’, p151-155, 1998.
[7] Xuzhu Dong, Deheng Zhu, Changchang Wang, Kexiong Tan, Yilu Liu, ‘Simulation of Transformer PD Pulse Propagation and Monitoring for 500kV Subsation’, IEEE Trans. On Dielectric and Electrical Insulation, Vol.6, No.6, Dec. 1999, p803-813.
[8] Z.D. Wang, P. A. Crossley, K. J. Cornick, ‘Partial Discharge Location in Power Transformers Using the Spectra of the Terminal Current Signals’, High Voltage Engineering Symposium, IEE, p5.58.s10-5.61.s10, Aug., 1999.
[9] P. Werle, A. Akobari, H. Borsi, E. Gockenbach, ‘Partial Discharge Localisation on Power Transformers Using Neural Networks Combined with Sectional Winding Transfer Functions as Knowledge Base’, p579-582.
[10] R.H. Middleton, G.C. Goodwin, Digital Control and Estimation, Prentice Hall, Englewood Cliffs, N.J., 1990.
[11] T. Back, D.B. Fogel, Z.Michalewicz Evolutionary Computation 1: Basic Algorithm and Operators, Institute of Physics Publishing, Bristol and Philadelphia, 1984.
[12] James S. Walsh, Graham C. Goodwin, Frequency Localising Basis Functions for Wide band Identification, 2003.
[13] Lawrence P.Huelsman, Basic Electrical Theory.
[14] Francisco de Leon, Adam Semlyen, Complete Transformer Model for Electromagnetic Transients, IEEE Transactions on Power Delivery, Vol.9, No.1, Jan.1994, p231-237.
[15] G.B.Gharehpetian, H.Mohseni, K.Moller, Hybrid Modelling of Inhomogeneous Transformer Windings for Very Fast Transient Over-voltage Studies, IEEE Trans. On Power Delivery, Vol.13, No.1, January 1998, p157-163.

Thank you for copying data from http://www.arastirmax.com